Cambridge IGCSE · 0620 · Paper 2 · Theory (Core)
Chemistry 0620/21 May/June 2012 past paper
Cambridge IGCSE Chemistry (0620) Paper 2 (Theory (Core)), variant 1, May/June 2012: the question paper and its official mark scheme, 7 questions worth 80 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 7
- Marks
- 80
File names: 0620_s12_qp_21 · 0620_s12_ms_21
Grade thresholds for 0620/21 May/June 2012
The minimum raw marks Cambridge set for each grade on this component (out of 80). Thresholds change every session and variant, so always compare your score with the paper you actually sat.
| A | B | C | D | E |
|---|---|---|---|---|
| 0 | 0 | 48 | 0 | 32 |
Topics in this paper
Which syllabus chapters 0620/21 May/June 2012 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Acids, bases and salts | 2 | 27 |
| Electrochemistry | 2 | 22 |
| Experimental techniques and chemical analysis | 1 | 11 |
| Organic chemistry | 1 | 11 |
| Chemistry of the environment | 1 | 9 |
Questions in 0620/21 May/June 2012
- Question 1
For Examiner’s Use 1 Stearic acid is a solid at room temperature. The diagram below shows the apparatus used for fi nding the melting point of stearic acid. The apparatus was heated at a steady rate and the temperature recorded …
- Question 2
For Examiner’s Use 2 The diagram below shows the structure of some substances, …
- Question 3
For Examiner’s Use 3 Hydrochloric acid and ethanoic acid are both acidic in nature. (a) Which one of the following is a pH value for an acidic solution. Put a ring around the correct answer. pH 3 pH 7 pH …
- Question 4
For Examiner’s Use 4 Fractional distillation is used to separate petroleum into different fractions. Each fraction has a particular use. (a) Match the fractions on the left with their uses on the right. The fi rst one has been done …
- Question 5
For Examiner’s Use 5 A student investigated the reaction between zinc and hydrochloric acid using the apparatus shown below. The zinc was in excess. zinc + hydrochloric acid → zinc chloride + hydrogen hydrochloric acid small test-tube held by a …
- Question 6
For Examiner’s Use 6 Lithium, sodium and potassium are in Group I of the Periodic Table. (a) The equation for the reaction of lithium with water is 2Li …
- Question 7
For Examiner’s Use 7 (a) The equations A and B below show two reactions which lead to the formation of acid rain. …
Other Chemistry papers from May/June 2012
- 0620/11 Multiple choice (Core)
- 0620/12 Multiple choice (Core)
- 0620/13 Multiple choice (Core)
- 0620/22 Theory (Core)
- 0620/23 Theory (Core)
- 0620/31 Theory (Extended)
- 0620/32 Theory (Extended)
- 0620/33 Theory (Extended)
- 0620/61 Alternative to Practical
- 0620/62 Alternative to Practical
- 0620/63 Alternative to Practical